mmueller-kaffeeschluerfercom
board_schematics.pngSchematics for the small PCBPortable Network Graphics (PNG) - 40.11 kB - 01/06/2021 at 15:10 |
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ua-25_mod_09.JPGThe 6 position DIP accessible from the closed lidJPEG Image - 5.26 MB - 01/06/2021 at 14:44 |
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JPEG Image - 4.32 MB - 01/06/2021 at 14:44 |
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ua-25_mod_07.JPGtop view of the opened UA-25 with modificationJPEG Image - 4.72 MB - 01/06/2021 at 14:43 |
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ua-25_mod_06.JPGtop view (detail)JPEG Image - 4.57 MB - 01/06/2021 at 14:43 |
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ua-25_mod_04.JPGeverything connectedJPEG Image - 4.11 MB - 01/06/2021 at 14:42 |
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ua-25_mod_03.JPGAK5381 PIN 16 unsoldered from PCB and connected to wireJPEG Image - 2.44 MB - 01/06/2021 at 14:41 |
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ua-25_mod_02.JPGThe ADC and the 3 connected wires (PIN 16, GND via and VD via)JPEG Image - 2.52 MB - 01/06/2021 at 14:41 |
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ua-25_mod_01.JPGTo see how the ADC is connected, I first unsoldered the bypass capacitors C84 and C76. The best place to cut the PCB wires was just next to the pads. So the cuts are not really visible on the photo.JPEG Image - 2.49 MB - 01/06/2021 at 14:38 |
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AK5381.pdfThe datasheet of the ADCAdobe Portable Document Format - 104.96 kB - 01/06/2021 at 14:37 |
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ua-25_mod.pngschematics of modificationsPortable Network Graphics (PNG) - 355.35 kB - 01/06/2021 at 14:34 |
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Add DC-coupled inputs to the Edirol UA-25
Modify the 96 kHz / 24 bit audio interface to provide DC-coupled 0-5 Volt inputs